Telescopic pipe of dust collector

Abstract

The utility model provides a dust collector telescopic pipe which comprises an inner pipe assembly provided with an inner pipe cavity and an inner pipe groove, an outer pipe arranged on the outer side of the inner pipe in a sleeving mode and provided with an outer pipe cavity, a flat plate part arranged on the inner pipe groove, located in the outer pipe cavity and provided with a recess, and a locking module arranged on the outer pipe in a sleeving mode and capable of being locked with the flat plate part. The locking module comprises a plurality of concave tooth-shaped grooves, a locking inner sleeve, a locking outer sleeve and a moving part, wherein the concave tooth-shaped grooves are located in one side in the concave part and arranged at intervals, the locking inner sleeve is arranged outside the inner pipe assembly in a sleeving mode, the locking outer sleeve is arranged on the locking inner sleeve in a sleeving mode and can move relative to the locking inner sleeve, and the moving part is located in the concave part and can move in a reciprocating mode. The positioning block is positioned in the recess, is matched with the moving part and can enter the tooth-shaped groove of the recess; and the moving part is at least provided with an accommodating tooth groove capable of accommodating the positioning block. The utility model has the advantages of meeting the requirements of different scenes, being convenient to store, flexible to stretch and retract, good in air tightness and not easy to leak air.

Description

Technical Field

[0001] This utility model relates to the field of household cleaning technology, and in particular to a telescopic tube for a vacuum cleaner. Background Technology

[0002] Vacuum cleaners, designed for cleaning floors, typically consist of a main unit positioned above the floor, a floor brush that contacts the floor, and a telescopic tube positioned between the main unit and the floor brush to guide the airflow of dirt. Because the telescopic tube is rigid and requires different lengths for different scenarios, multiple tubes need to be connected, which is inconvenient for storage. A similar technology can be found in Chinese invention patent CN103115209A, therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this utility model is to provide a vacuum cleaner telescopic tube that meets the needs of different scenarios, is easy to store, and is flexible, airtight, and not prone to air leakage.

[0004] To achieve the purpose of this utility model, the present utility model provides the following technical solution: a vacuum cleaner telescopic tube, comprising an inner tube assembly having an inner tube cavity and an inner tube groove, an outer tube sleeved on the outside of the inner tube assembly and having an outer tube cavity, a flat plate portion disposed on the inner tube groove and located in the outer tube cavity and having a recess, and a locking module sleeved on the outer tube and lockable with the flat plate portion, wherein the locking module comprises: a plurality of recessed toothed grooves located on one side of the recess and spaced apart from each other, a locking inner sleeve sleeved on the outer of the inner tube assembly, a locking outer sleeve sleeved on the locking inner sleeve and movable relative to the locking inner sleeve, a moving member located in the recess and capable of reciprocating, and a positioning block located in the recess, cooperating with the moving member and capable of entering the recessed toothed groove, wherein the moving member is provided with at least a receiving toothed groove for receiving the positioning block.

[0005] Based on the above technical solution, the following supplementary technical solutions are further included:

[0006] Compared with the prior art, the present invention has the following positive effects:

[0007] It also includes a first connector that connects to the locking jacket and a second connector that connects to the other end of the outer tube.

[0008] The centers of the inner and outer locking sleeves are on the same axis and along the direction of airflow, wherein the recessed toothed grooves are spaced apart along the direction of airflow.

[0009] The moving part includes an insertion hole, a pair of elastic limiting posts located at both ends of the insertion hole, and a pair of elastic elements with one end sleeved on the elastic limiting posts. The receiving groove is located on one side of the insertion hole. When the receiving groove is aligned with the recessed toothed groove, the positioning block is allowed to move; when the receiving groove is misaligned with the recessed toothed groove, the positioning block is prohibited from moving.

[0010] The locking inner sleeve is provided with an inner sleeve groove for receiving the moving part, and a pair of inner sleeve groove posts located in the inner sleeve groove and fitted at the other end of the elastic part.

[0011] The locking module further includes a pusher for pushing the locking outer sleeve, and the locking outer sleeve is provided with an outer sleeve groove corresponding to the inner sleeve groove and capable of accommodating the pusher. The pusher includes a pusher post that can pass through the outer sleeve groove and the inner sleeve groove and be inserted into the insertion hole.

[0012] The inner tube assembly includes an inner tube, an injection-molded portion formed on the outside of the inner tube, and a pair of hollow cavities formed on both sides of the groove of the inner tube and located within the injection-molded portion, wherein the groove of the inner tube is located on the injection-molded portion.

[0013] The pusher has arrows at both ends indicating the direction of movement, which is the same as the airflow direction of the inner tube assembly.

[0014] The positioning block is circular or spherical, and its diameter is smaller than the maximum width of the recessed toothed groove or the receiving toothed groove.

[0015] The receiving grooves are located on both sides of the moving member, wherein the center direction of the receiving grooves is perpendicular to the movement direction of the moving member.

[0016] This utility model has the following advantages: it meets the needs of different scenarios, is easy to store, and is flexible and airtight, making it less prone to leakage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present invention from a first angle;

[0019] Figure 2 This is a perspective view of the present invention from a second angle;

[0020] Figure 3 This is a perspective view of the present invention from a third angle;

[0021] Figure 4 This is a cross-sectional view of the present invention from a fourth angle;

[0022] Figure 5 This is an exploded view of the present invention;

[0023] Figure 6 This is a cross-sectional view of the present invention from the fifth angle;

[0024] Figure 7 This is a perspective view of the pushing component in this utility model;

[0025] Figure 8 and Figure 1 Similarly, the pusher component was removed;

[0026] Figure 9 and Figure 8 Similarly, the outer tube was removed;

[0027] Figure 10 and Figure 9 Similarly, the lock on the jacket has been removed. Detailed Implementation

[0028] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0031] Example: Figure 1-10As shown, this utility model discloses a specific embodiment of a vacuum cleaner telescopic tube, which includes: an inner tube assembly 100 having an inner tube cavity 120 and an inner tube groove 140; an outer tube 200 sleeved on the outside of the inner tube assembly 100 and having an outer tube cavity 220; a flat plate portion 300 disposed on the inner tube groove 140 and located inside the outer tube cavity 220 and having a recess 320; a locking module sleeved on the outer tube 200 and lockable with the flat plate portion; a first connector 720 connected to the locking sleeve 500; and a second connector 740 connected to the other end of the outer tube 200.

[0032] The inner tube assembly 100 includes an inner tube 110, an injection-molded portion 130 formed on the outer side of the inner tube 110, and a pair of hollow cavities 150 formed on both sides of an inner tube groove 140 and located within the injection-molded portion 130, wherein the inner tube groove 140 is located on the injection-molded portion 130. The inner tube 110 is preferably a metal tube and is injection-molded with the injection-molded portion 130. The inner tube cavity 120 is located inside the inner tube 110.

[0033] The outer tube 200 is a metal tube and is coaxial with the inner tube 110. The outer tube cavity 220 is located inside the outer tube 200. The outer tube cavity 220 and the inner tube cavity 120 are interconnected to allow airflow. The second connector 740 has a second connector cavity 744, and the first connector 720 also has a first connector cavity. The outer tube cavity 220, the inner tube cavity 120, the first connector cavity, and the second connector cavity 744 are interconnected.

[0034] The flat plate 300 extends along the center direction of the inner tube 110, and the recess 320 also extends along the center direction of the inner tube 110.

[0035] The locking module includes: a plurality of recessed toothed grooves 340 located on one side of the recess 320 and spaced apart from each other; a locking inner sleeve 400 sleeved on the inner tube assembly 100; a locking outer sleeve 500 sleeved on the locking inner sleeve 400 and movable relative to the locking inner sleeve 400; a moving member 600 located in the recess 320 and capable of reciprocating; a positioning block 620 located in the recess 320 and cooperating with the moving member 600 and capable of entering the recessed toothed grooves 340; and a pushing member 660 for pushing the locking outer sleeve 500. The moving member 600 is provided with at least one receiving toothed groove 610 for accommodating the positioning block 620. The receiving toothed groove 610 is formed by two toothed protrusions 614 located at both ends spaced apart. The receiving toothed groove 610 and the toothed protrusions 614 are located on both sides of the moving member 600 and there are several of them.

[0036] The locking inner sleeve 400 is provided with an inner sleeve groove 404 for accommodating the moving member 600, and a pair of inner sleeve groove posts located in the inner sleeve groove 404 and fitted at the other end of the elastic member 640.

[0037] The locking outer sleeve 500 is provided with an outer sleeve groove 504 corresponding to the inner sleeve groove 404 and capable of accommodating the pusher 660. The pusher 660 includes a pusher post 664 that can pass through the outer sleeve groove 504 and the inner sleeve groove 404 and be inserted into the insertion hole 604. The centers of the locking inner sleeve 400 and the locking outer sleeve 500 are on the same axis and along the direction of airflow, wherein the recessed toothed grooves 340 are spaced apart along the direction of airflow.

[0038] The moving component 600 includes an insertion hole 604, a pair of elastic limiting posts 606 located at both ends of the insertion hole 604, and a pair of elastic elements 640 with one end sleeved on the elastic limiting posts 606. A receiving groove 610 is located on one side of the insertion hole 604. When the receiving groove 610 is aligned with the recessed toothed groove 340, the positioning block 620 is allowed to move; when the receiving groove 610 is misaligned with the recessed toothed groove 340, the positioning block 620 is prohibited from moving. The positioning block 620 is circular or spherical, and its diameter is smaller than the maximum width of the recessed toothed groove 340 or the receiving groove 610. The elastic element 640 is preferably a spring. The pushing component 660 has arrows indicating the direction of movement at both ends, wherein the direction of movement is the same as the airflow direction of the inner tube assembly 100.

[0039] When stretching is required, the user presses down on the pusher 660. The pusher post 664 drives the insertion hole 604 of the moving part 600 to move, compressing the elastic part 640. Because the receiving groove 610 aligns with the recessed toothed groove 340, the positioning block 620 is allowed to move, and the outer tube 200 moves relative to the inner tube 110. Once the user releases the force, when the receiving groove 610 and the recessed toothed groove 340 are misaligned, the positioning block 620 is stopped from moving, and the outer tube 200 moves relative to the inner tube 110. Since the outer tube cavity 220 and the inner tube cavity 120 are interconnected, airflow can pass through them regardless of whether the tube is stretched or shortened.

[0040] The advantages of this utility model are: it meets the needs of different scenarios, is easy to store and retract, and has good airtightness and is not easy to leak air.

[0041] The above are merely preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A telescopic tube for a vacuum cleaner, characterized in that... It includes an inner tube assembly (100) having an inner tube cavity (120) and an inner tube groove (140), an outer tube (200) sleeved on the outside of the inner tube assembly (100) and having an outer tube cavity (220), a flat plate portion (300) disposed on the inner tube groove (140) and located within the outer tube cavity (220) and having a recess (320), and a locking module sleeved on the outer tube (200) and lockable to the flat plate portion, wherein the locking module includes: a plurality of recessed toothed grooves (320) located on one side within the recess (320) and spaced apart from each other. 40) A locking inner sleeve (400) sleeved outside the inner tube assembly (100), a locking outer sleeve (500) sleeved on the locking inner sleeve (400) and movable relative to the locking inner sleeve (400), a moving member (600) located in the recess (320) and capable of reciprocating, and a positioning block (620) located in the recess (320) and cooperating with the moving member (600) and capable of entering the toothed groove (340) of the recess, wherein the moving member (600) is provided with at least a receiving toothed groove (610) for receiving the positioning block (620).

2. The vacuum cleaner telescopic tube according to claim 1, characterized in that... It also includes a first connector (720) connected to the locking jacket (500) and a second connector (740) connected to the other end of the outer tube (200).

3. The vacuum cleaner telescopic tube according to claim 2, characterized in that: The centers of the locking inner sleeve (400) and the locking outer sleeve (500) are on the same axis and along the direction of airflow, wherein the recessed toothed grooves (340) are spaced apart along the direction of airflow.

4. The vacuum cleaner telescopic tube according to claim 1, characterized in that: The moving part (600) includes an insertion hole (604), a pair of elastic limiting posts (606) located at both ends of the insertion hole (604), and a pair of elastic members (640) with one end sleeved on the elastic limiting post (606). The receiving groove is located on one side of the insertion hole (604). When the receiving groove (610) is aligned with the recessed toothed groove (340), the positioning block (620) is allowed to move; and when the receiving groove (610) is misaligned with the recessed toothed groove (340), the positioning block (620) is prohibited from moving.

5. The vacuum cleaner telescopic tube according to claim 4, characterized in that: The locking inner sleeve (400) is provided with an inner sleeve groove (404) for receiving the moving member (600) and a pair of inner sleeve groove posts located in the inner sleeve groove (404) and fitted at the other end of the elastic member (640).

6. The vacuum cleaner telescopic tube according to claim 5, characterized in that: The locking module further includes a pusher (660) for pushing the locking outer sleeve (500), and the locking outer sleeve (500) is provided with an outer sleeve groove (504) corresponding to the inner sleeve groove (404) and capable of accommodating the pusher (660). The pusher (660) includes a pusher post (664) that can pass through the outer sleeve groove (504), the inner sleeve groove (404) and be inserted into the insertion hole (604).

7. The vacuum cleaner telescopic tube according to claim 1, 2, 3, 4, 5, or 6, characterized in that: The inner tube assembly (100) includes an inner tube (110), an injection molding portion (130) formed on the outside of the inner tube (110), and a pair of hollow cavities (150) formed on both sides of the inner tube groove (140) and located in the injection molding portion (130), wherein the inner tube groove (140) is located on the injection molding portion (130).

8. The vacuum cleaner telescopic tube according to claim 6, characterized in that: The pusher (660) has arrows at both ends indicating the direction of motion, wherein the direction of motion is the same as the airflow direction of the inner tube assembly (100).

9. The vacuum cleaner telescopic tube according to claim 1, characterized in that: The positioning block (620) is circular or spherical, and its diameter is smaller than the maximum width of the recessed toothed groove (340) or the receiving toothed groove (610).

10. The vacuum cleaner telescopic tube according to claim 1, characterized in that: The receiving groove (610) is located on both sides of the moving member (600), wherein the center direction of the receiving groove (610) is perpendicular to the movement direction of the moving member (600).

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